Machine foe splitting- shoe-peg s



UNITED STATES PATENT OFFICE.

NATHANIEL H. SHAV, OF TABDVORTH, NEW' HAMPSHIRE.

MACHINE FOR SPLITTING SHOE-PEGS.

Specification of Letters Patent No. 16,659, dated February 1'?, 1857.

To all lwhom it may concern:

Be it known that I, NATHANIEL H. SHAW, of Tamworth, in the county ofCarroll and State of New Hampshire, have invented a new and ImprovedMachine for Splitting Shoe-Pegs from the Blocks; and I do hereby declarethat the following is a full and exact description thereof, referencebeing had to the accompanying drawings, making part of thisspecification, Figure l being a plan of the machine; Fig. 2, a sideelevation thereof; Fig. 3, a vertical section in the plane indicated bythe line fo Figs. l and 2; Fig. 4, a corresponding section, representingcertain parts in different positions.

Like letters designate corresponding parts in all the figures.

A suitable table A, is prepared for the reception of the machinery andthe work. All the parts are driven by a driving shaft B, to which thepower may be applied in any convenient manner. The parts to which themovements are communicated, directly or indirectly, from this shaft, arethe splitting knife D, the holding bar E, and the feeding blade Gr.

The knife D, is driven by means of a crank P, on the driving shaft, anda pitman M, connecting said crank with one end of the knife, the otherend thereof, being pivoted at a, to the table. A guide serves to keepthe knife firmly and accurately in the proper plane.

The holding bar E, is provided at the ends with sleeves R, R, whichslide upon vertical rods Q, Q; or any equivalent arrangement forallowing a vertical reciprocating movement of the bar, may be employed.The rods, or posts, Q, Q, are made adjustable in position, either byhaving them mounted on arms O', O, which may be moved around to anydesired position, on pivots f, f, as represented in the drawings; or byany other convenient device, such as slots in the table A, andtightening nuts to secure said posts in any position in the slots. Theobject in making the position of the holding bar E, adjustable, is toenable the machine to be readily prepared for splitting pegs ofdifferent thicknesses froin the blocks. The peg blocks S, are previouslygrooved in directions at right angles, so as to form the points of thepegs as seen at s, s, in the drawings. The distance betweenthe loweredge of the knife D, and of the holding bar E, should be equal to thedistance between the adjacent grooves s, 8whatever the thickness of thepegs, so that as the bar presses down in one groove, the knife may beaccurately directed to the center of the adjacent groove and thusseparate the strips so as to leave no burs or slivers at the points ofthe pegs. The bar E, is lifted from the blocks of peg-wood, by the knifeD, striking a pin c projecting from the side of said bar. It is presseddown upon the block by springs d, d, on the posts Q, Q, the force of thepressure being regulated by nuts e, e, screwed upon the ends of theposts. Thus, after the block is moved along by the feeding blade, as theknife descends and leaves the pins c the holding bar is allowed to entera groove s and thus secure the proper position of the block before theknife reaches it; and again the knife ascends and entirely clears fromthe block before the holding bar is started from its hold, so that theposition of t-he block can not be disarranged so as to make bad work, ifthe machine is properly adjusted in the beginning.

The feeding blade, or pawl, G, is secured to the ends of two vibratoryarms N, N, which are pivoted at 1', r, to cheeks, or standards, L, L,attached to a rock-shaft H. The blade is adjusted to suit differentlengths of pegs, by means of adjusting screws n, a, in the tops of thestandards L, L, servingas stops to the movement of the projectingextremities p, 79, of the arms N, N. Slight springs, m, m, press downupon the arms N, N, and thus cause the feeding blade to enter thegrooves of the blocks with certainty. The proper vibratory motion isgiven to the rock-shaft H, by the action of a cam C, upon an arm I,which projects downward from said rock-shaft. This cam is situated onthe driving-shaft B, and has a throw sufficient to give the utmostmovement to t-he feeding-blade required for the largest pegs. Themovement of the feeding blade is varied to suit all sizes of pegs, by anadjustable stop g, against which the vibratory arm I, is forced at everyrevolution of the cam, whereby a greater or less portion of said cam ismade to act upon the arm. The counter motion of the arm I, is given by aspring Z, or its equivalent. The feeding blade is required to be soadjusted that when it is driven forward to the farth est extent of itsmotion, the distance of its lower edge shall be just the distancebetween two adjacent grooves, behind that of the holding bar E; and whendrawn back to the extent of its movement, the distance between it andsaid holding bar shall be equal to the width of two rows of pegs. Thesedistances are adjusted by setting a spring 7L, attached to the arm I,against which the cam acts, to the proper position by an adjusting screwz, as represented in the drawings.

Among the advantages of the above described machine, besides its evidentsimplicity and cheapness, are, 1st, it works the blocks up to the lastrow; 2nd, it is not liable to get disarranged, so as to do bad work;3rd, its capability of adjustment, to split out pegs of all sizes, withthe utmost facility and without the replacement of a single part.

I do not claim the combination of a splitting knife with a flutedfeeding roller, or its equivalent, being aware that such has before beenclaimed; but

l/Vhat I claim as my invention and desire to secure by Letters Patent,is

l. The feeding blade G, when arranged substantially as described;whereby its movement is produced and adjusted to suit all therequirements of the machine, under all circumstances, in the most simpleand perfect manner.

Q. I also claim the arrangement of the holding bar E, in such a manneras to enable its motions to be produced without interference with thealternate action of the splitting knife and feeding blade, and to beadjusted for the different sizes of pegs so as not to disarrange therelative positions and movements of said holding bar, splitting knife,and feeding blade, substantially as specified.

NATHANIEL H. SHAW.

Vitnesses ENOCH REMICK, RUSSELL H. CARTER.

